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Finding the Fourth Proportional to 19,762.52, 29,633.49 and 7,278.17

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Solution

The fourth proportional to 19,762.52, 29,633.49 and 7,278.17 is: 10,913.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,762.52 : 29,633.49 = 7,278.17 : x
  2. Step 2: Convert to fraction form
    19,762.52/29,633.49 = 7,278.17/x
  3. Step 3: Cross multiply
    19,762.52x = 29,633.49 × 7,278.17
  4. Step 4: Simplify right side
    19,762.52x = 215,677,429.75
  5. Step 5: Solve for x
    x = 215,677,429.75/19,762.52
  6. Step 6: Final answer
    x = 10,913.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.